Widely used as a corrosion inhibitor, especially in cooling water systems and hydraulic fluids, protecting copper and its alloys from degradation. It forms a protective film on metal surfaces, preventing oxidation and extending equipment life. Commonly found in antifreeze formulations and metalworking fluids. Also used in some UV stabilizers for plastics and coatings due to its ability to absorb ultraviolet light, helping to prevent polymer degradation and color fading. Employed in certain aerospace and automotive applications where long-term material stability is critical.